Improved method of constructing- piles for beams



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` CHARLES HEWITT, `OF TRENTON, NEW JERSEY.

Lamslaantlvasam, daad May 4,1869.

IMPRVED'MTHOD OF CONSTRUCTING' PILES FOR BEAMS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may conce/ra.-

Be it knownthat I, CHARLES Hnwrr'r, of Trenton, Mercer county', and State of New Jersey, have inf vented a new and` improved `Method oi' Forming the Piles, preparatory to rolling iron girders, trough-bars, or other like bars; and I do hereby declare that the following is a full, clear, and exact description there l of, reference being had to the accompanying drawings,

making part of this specification, in which- Figs. 1, 2, 3, 4, 5, 6, 7, and 8,'are cross-sections, representing my said improved method as applied to forming piles of various forms. I

The same lettersindicatelike parts in the various igures. l In the manufacture of iron bars, of 'the character designated, it is desirable thatthe form of the pile should resemble, as near as may be, the form of the bar, after it has been completed,.for the following reasons, viz:

First, so that the rolling may be accomplished by the use of aA less number of grooves in the rollers than would otherwise be required, thereby nishing the bars in less time, at a temperature sufficiently high to insure a perfectV weld and avoid flaws orf defects in the completed bar, and, at thesame time, to save the rollin g-machinery from yundue and dangerous strains; and

Second, so that the reduction of-the iron in rolling 'may be more uniform in every part of the pile, and thereby avoid unequal and iuj urious strains which would otherwise weaken the resulting bar.

In the accompanying drawings- Figure l represents a pile, such as prepared for rolling a girder, with a web and anchedhead-pieces.

'lhehead-pieees A A are formed each with a projecting rib, a, and the pieces B B, next to them, are formed with grooves, to receive the ribs a a, and the pieces B B, and the intermediate piece or pieces O, as there may be any number, depending upon the size of the girder, are formed with ribs and grooves, as represented, to fornrthe web.

The grooves'are made a little wider than the ribs,

into which wedges, b,'are driven, to hold together the.

several pieces constituting the pile. v y Figure 2 represents a pile, arranged according to my improved method, and suitable for producing a bar 4without flanched head-pieces. f

Instead of forming the two contiguous faces of two pieces, one with a `rib and the other with a groove,

both may be grooved, a square rod, c, inserted, and y there secured bya wedge, or wedges, b.

V Figure 3 represents a pile with one double-anched head-piece, A, suitable for producing a bar of corresponding form. The lower piece D, of the web, has neither groove nor rib on the lower surface. l Figure 4 represents a pile, with two single-danched head-pieces A A, suitable for. producing a bar with two danches on one side only.

' uFigure 5 represents a pile, with two head-pieces A".4 A, one double-anched and the other single-flanched.

lIn Figure 6, the pile has two head-pieces A A, both, single-flanched, but on opposite sides.

Figure 7`represents a pile, with the double-Hauched piece Ain the middle of the pile, suitable for producing a bar, whose cross-section will be in the form of a cross; and

Figure 8 lrepresents a pile, with one single-danched head-piece.

The advantages due to myim'proved method' of forming piles, are l .A l

First, the facility with which the shape or size of the pilemay be made to conform to that of any of the sections of iron, for which it is intended, without multiplying the forms of iron which it is necessary to prepare for the purpose.

Second, theu stabil` ty of the pile, enabling it to stand vall the necessary manipulation iu the heating-furnace,

and from the furnace to the rolls, without becoming distorted or dismembered. l

Third, facility for the escape of the cinder in the process of rolling, thereby securing a better welding lof the parts.

I have represented several 'forms of piles, to which my improved bmethod is applicable, but I wish it to be understood that I' do not limit my claim to such forms, as` my invention isapplicable to other forms.

I do not claim, as any part of my'invention, the formation of piles, by the combination of plain flat bars, to form the web, with grooved bars to form the anches, as I am aware that piles have been so made.

What I do claim as my invention, and desire to seeure by Letters Patent, is-

My improved method of arranging piles for rolling bars of the general character herein pointed out, which method consists in composing the pileof a series of pieces, formed withribs and grooves, and secured by wedges,substantially as described.

CHAS. HEWI'IT. Witnesses:

FRED. J. SLADE, I. BARNES, Jr. 

